Figure 007-35 Connecting A Tone Source Supplied With D.c - NEC NEAX 2000 IVS Installation Manual

NAP 200-007
Sheet 43/56
Termination of Cables on the MDF
• If a D.C. voltage is supplied with the tone from the external tone source equipment, a transformer or cou-
pling capacitor should be used as shown in
Ring
TO COT
Tip
TO PBX
K
Ring
TO COT
Tip
TO PBX
K
CHAPTER 3
Page 128
Revision 2.0
TO CONTROL CIRCUIT
FROM PN-DK00
TO CONTROL CIRCUIT
FROM PN-DK00

Figure 007-35 Connecting a Tone Source Supplied with D.C.

Figure 007-35.
CAPACITOR
2 µF
TRANSFORMER
CAPACITOR
2 µF
SOURCE
EXTERNAL EQUIPMENT
ND-45492 (E)
SOURCE
R
DC
VOLTAGE
SOURCE
EXTERNAL EQUIPMENT
R
DC
VOLTAGE
SOURCE